Bonding (Part A): Ionic Bonds
Overview/Rationale
In this unit students study the interaction of particles in compounds using ionic bonding, where bonding occurs when electrons are transferred between atoms. Students learn that an element’s position on the periodic table supplies information on ion formation and bonding tendencies, which is used to write the names and formula of ions and ionic compounds. Students apply their understanding to explain the properties of Ionic compounds.
Student Objectives
● Describe how elements form ionic compounds to satisfy the octet rule.
● Identify the ionic charge of elements and the overall electrical change of an ionic compound.
● Model the valence electrons of metal and nonmetal atoms by drawing the Lewis structures.
● Apply the rules for naming and writing the formulas for binary ionic compounds and compounds with polyatomic ions.
● Explain the macroscopic properties of ionic compounds by analyzing the sub-microscopic level.
Vocabulary
Valence electron, electron dot structure, Lewis structure, octet rule, ion, ionic compounds, ionic bonds, cation, anion, monatomic ions, polyatomic ions, metallic bonds, alloys.
Department Activities:
1. Flinn Scientific Chemistry Card game, go Fish for an Ion (HS-PS1-1)
2. Nomenclature of Ionic Compounds
3. Ionic and Covalent properties lab (Student designed): https://drive.google.com/open?id=0B0XImXxS1gxJbHc2c1N4cEg5Vzg